"If I am visiting some of the Java code other developers have worked on, I noticed a lot of code that appears to be useless and maybe are added out of habit. I am talking about private fields like this: private int aSimpleInt = 0; and private boolean myBool = false; as well as private MyObject obj = null;. Editing the code won’t make a difference but I don’t know what to do – is it appropriate to just take it out?"